Refractive index database

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Optical constants of C3H9O3P (Dimethyl methylphosphonate, DMMP)
Myers et al. 2018: n,k 1.28–25.0 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants

Conditions & Spec sheet

n_is_absolute: true
wavelength_is_vacuum: true
temperature: 26 °C


26 °C


T. L. Myers, R. G. Tonkyn, T. O. Danby, M. S. Taubman, B. E. Bernacki, J. C. Birnbaum, S. W. Sharpe, T. J. Johnson. Accurate measurement of the optical constants n and k for a series of 57 inorganic and organic liquids for optical modeling and detection, Appl. Spectrosc. 72, 535-550 (2018) (see Supplemental Material for numerical data)


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Dimethyl methylphosphonate, C3H9O3P

Dimethyl methylphosphonate (C3H9O3P) is an organic compound that is commonly used as a flame retardant and as a plasticizer. It is a clear, colorless liquid at room temperature and is soluble in many organic solvents. This compound is characterized by the presence of phosphorus in its molecular structure. In addition to its industrial uses, dimethyl methylphosphonate is often employed as a simulant in studies related to the detection and decontamination of nerve agent threats due to its structural similarities with certain nerve agents.

Other names

  • DMMP
  • Methylphosphonic acid dimethyl ester
  • dimethoxymethyl phosphine oxide
  • Dimethyl methanephosphonate
  • Dimethyl methyl phosphonate
  • Fran TF 2000
  • Fyron DMMP
  • Metaran
  • NSC 62240
  • O,O-dimethyl methylphosphonate
  • Reoflam DMMP

External links